A flaw was found in DPDK lib/vhost. The VDUSE handler fails to invalidate vring pointers when the IOTLB is invalidated, leading to use-after-unmap.
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Fixes

Solution

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Workaround

No mitigation is currently available.

History

Thu, 15 Oct 2026 16:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Thu, 15 Oct 2026 13:30:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Important


Wed, 14 Oct 2026 18:00:00 +0000

Type Values Removed Values Added
Description A flaw was found in DPDK lib/vhost. The VDUSE handler fails to invalidate vring pointers when the IOTLB is invalidated, leading to use-after-unmap.
Title Dpdk: dpdk: vduse handler fails to invalidate vring pointers when iotlb is invalidated, leading to use-after-unmap
First Time appeared Redhat
Redhat enterprise Linux
Redhat openshift
Redhat openstack
Weaknesses CWE-416
CPEs cpe:/a:redhat:openshift:4
cpe:/a:redhat:openstack:13
cpe:/o:redhat:enterprise_linux:10
cpe:/o:redhat:enterprise_linux:10::fastdatapath
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:enterprise_linux:8::fastdatapath
cpe:/o:redhat:enterprise_linux:9
cpe:/o:redhat:enterprise_linux:9::fastdatapath
Vendors & Products Redhat
Redhat enterprise Linux
Redhat openshift
Redhat openstack
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-10-20T02:39:51.097Z

Reserved: 2026-09-08T02:56:53.901Z

Link: CVE-2026-86567

cve-icon Vulnrichment

Updated: 2026-10-15T15:10:04.432Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-14T18:19:18.390

Modified: 2026-10-15T16:18:22.257

Link: CVE-2026-86567

cve-icon Redhat

Severity : Important

Publid Date: 2026-10-14T15:01:08Z

Links: CVE-2026-86567 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-10-15T14:45:17Z

Weaknesses